【立体音響】オレゴン州ポートランドを散歩 2017.01.09 動画 イヤホン推奨 https://www.youtube.com/watch?v=aU1XaY4_R9wVideo can’t be loaded because JavaScript is disabled: Portland, Oregon – 4/11/2013 [binaural audio – wear headphones for 3D effect] (https://www.youtube.com/watch?v=aU1XaY4_R9w)